C02F 2303/00
Specific treatment goals
C02F2303/00 (Specific treatment goals) appears on 7,962 US grants and 11,509 published applications in this corpus.
Search patents in C02F- Granted patents
- 7,962
- Published applications
- 11,509
- Assignees
- 4,870
- Inventors
- 19,908
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 19 | 0 |
| 1977 | 16 | 0 |
| 1978 | 26 | 0 |
| 1979 | 14 | 0 |
| 1980 | 21 | 0 |
| 1981 | 23 | 0 |
| 1982 | 13 | 0 |
| 1983 | 14 | 0 |
| 1984 | 14 | 0 |
| 1985 | 11 | 0 |
| 1986 | 8 | 0 |
| 1987 | 12 | 0 |
| 1988 | 14 | 0 |
| 1989 | 23 | 0 |
| 1990 | 21 | 0 |
| 1991 | 27 | 0 |
| 1992 | 29 | 0 |
| 1993 | 29 | 0 |
| 1994 | 34 | 0 |
| 1995 | 43 | 0 |
| 1996 | 32 | 0 |
| 1997 | 46 | 0 |
| 1998 | 47 | 0 |
| 1999 | 63 | 0 |
| 2000 | 65 | 0 |
| 2001 | 64 | 23 |
| 2002 | 94 | 129 |
| 2003 | 116 | 184 |
| 2004 | 116 | 187 |
| 2005 | 92 | 225 |
| 2006 | 115 | 179 |
| 2007 | 111 | 198 |
| 2008 | 116 | 257 |
| 2009 | 119 | 272 |
| 2010 | 174 | 354 |
| 2011 | 176 | 354 |
| 2012 | 159 | 372 |
| 2013 | 206 | 420 |
| 2014 | 242 | 484 |
| 2015 | 249 | 615 |
| 2016 | 307 | 656 |
| 2017 | 412 | 638 |
| 2018 | 439 | 646 |
| 2019 | 550 | 679 |
| 2020 | 565 | 729 |
| 2021 | 560 | 758 |
| 2022 | 508 | 763 |
| 2023 | 501 | 703 |
| 2024 | 504 | 670 |
| 2025 | 499 | 605 |
| 2026 | 304 | 409 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C02F 2303/04DisinfectionIndexing code3,218
- C02F 2303/16Regeneration of sorbents, filtersIndexing code1,712
- C02F 2303/22Eliminating or preventing deposits, scale removal, scale preventionIndexing code826
- C02F 2303/18Removal of treatment agents after treatmentIndexing code619
- C02F 2303/20Prevention of biofoulingIndexing code616
- C02F 2303/10Energy recoveryIndexing code614
- C02F 2303/24Separation of coarse particlesIndexing code519
- C02F 2303/02Odour removal or prevention of malodourIndexing code498
All 13 subgroupsShow fewer
Recent patents
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Most cited
By later US patents
- Electrochemical production of ozone and hydrogen peroxide465US 5,972,196 ALynntech, Inc. · 1999
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- Golf course irrigation water monitoring and treatment system204US 6,620,329 B2Turf Sentry, Inc. · 2003
- Nanofiber filter media194US 6,872,311 B2Koslow Technologies Corporation · 2005
- Method and system for producing sterile aqueous solutions193US 5,032,265 AMillipore Corporation · 1991